Sliding guide for a peristaltic pump

Abstract

A peristaltic pump that includes an assembly including a rotor configured to compress a hose/tube being positioned on a pump cavity inner perimeter and an adjustment mechanism configured to adjust the compression force imposed on the hose/tube. The adjustment mechanism includes a gear unit and a counterpart for the gear unit. The counterpart is operatively coupled to the rotor, wherein the gear unit in cooperation with the counterpart is configured to adjust a gap between the rotor outer surface and the pump cavity inner perimeter. The assembly is fixed to a sliding guide that is configured to support the hose/tube.

The invention claimed is: 
     
       1. A peristaltic pump comprising an assembly comprising:
 a rotor configured to compress a hose being positioned on an inner perimeter of a pump cavity, and 
 an adjustment mechanism configured to adjust a compression force imposed on the hose, 
 wherein: 
 the assembly is coupled to a crankshaft of a pump body, 
 the adjustment mechanism comprises a gear unit and a counterpart for the gear unit, 
 the counterpart is operatively coupled to the rotor, 
 the gear unit in cooperation with the counterpart is configured to adjust a gap between an outer surface of the rotor and the inner perimeter of the pump cavity, 
 the assembly is fixed to a sliding guide that is configured to support a portion of the hose that is not in contact with the outer surface of the rotor, 
 the gear unit comprises a shaft and a gear on each end of the shaft, and 
 the counterpart for the gear unit comprises a counterpart piece on each end of a shaft of the rotor. 
 
     
     
       2. The peristaltic pump according to  claim 1 , wherein bearings of the crankshaft are arranged within the pump cavity. 
     
     
       3. The peristaltic pump according to  claim 1 , further comprising a locking means configured to function in a locking position and a rest position,
 wherein:
 the locking means in the locking position is configured to lock the adjustment mechanism, and 
 the locking means in the rest position is configured to enable an adjusting operation of the adjusting mechanism. 
 
 
     
     
       4. The peristaltic pump according to  claim 1 , wherein the gear unit is rotatable with a crank.